Improvement in metallic flasks for casting large kettles



Ntra rares VILLIAM KELLY, OFEDDYVILLE, KENTUCKY.

IMPROVEMNT IN METALLIC FLASKS FOR CASTING LARGE KETTLES.

Specification forming part of Letters Patent No. 7,310, dated December3, 1850.

To all whom it may concern:

Be it known that I, WILLIAM KELLY, ofthe town of Eddyville, Caldwellcounty, and State of Kentucky, have invented a new and Improved Flask orMold for Casting Sugar Pans and Kettles; .and I do hereby declare thatthe following is a full and exact description of the same, referencebeing had to the accompanying drawings,forming part of thisspeciiicatiou.

Figure l represents a vertical section through the center of the flaskor mold, showing the proper position of the several parts when puttogether and ready for the introduction ofthe liquid metal to form akettle. Fig. 2 is a plan or top view of the sectional or elastic core,showing the covering-plates arranged over the slits. Fig. 3 is a plan ortop view of the foot-ring, showing the projecting ribs upon which thecore rests, and the step or bearing for the sweep. Fig. 4 is a view ofthe sectional or elastic core inverted, showing the sections or wingsand their attachment to the crown of the core. Fig. 5 is a plan showingthe upper section of the cope containing the gates for the introductionof the melted metal. Fig. 6 is a perspective view of a short tubeattached to the top of the cope, which forms the opening for thesinking-head in the loam when the cope is being covered. Fig. 7 is anelevation of the coresweep, showing the counter-sweep.

My improvement consists in a certain construction of the iron iiask inwhich are east kettles. Iron molds are iu general use for casting pansand kettles with the flange upward. I cast mine with the flangedownward, and am thereby enabled to drive off the impurities containedVin the iron in the same manner as they are expelled from the iron in abrick mold.

I construct my mold or flask in the following manner, differing from allother iron sugar pan or kettle molds heretofore used: The core,

Figs. l, 2, and 4, is an elastic or sectional iron skeleton providedwith a suicient number of vent-holes, and having the sides divided intoa number of pieces or wings, A A, by being split at the flange andupward about threefourths of the way to the crown A. The wings areattached to the crown by iron straps B B, Fig. 4, which, having a slightelasticity, admit of the core contracting when the casting is shrinking.The spaces between the wings are covered with straps of thin iron, C CC, Fig. 2, to prevent the loam (with which the mold is covered) fromgetting between the wings. The core is held to its seat by two flexiblehooks, E E, Fig. 4, fixed to the inside of the tlange ofthe core, andpassing under or hooking to the ribs of the foot-ring. The footring,Fig. 3, is a circular iron plate having a vertical ring, I, connected toit, the sides of which ring run in nearly a perpendicular to thehorizontal plane orn the circular plate. On the inside of this ring areattached a number of ribs, K K, projecting toward the center. On theseribs are'placed the core. A bar, V, is xed across the circular plate orfoot-ring, with a center hole in it. The sweep, Fig. 7, with which thecore is covered, turns in this center, and also in the center hole, L,Figs. l, 2, and 4, in the crown of the core.

The sweeps used in covering my molds are on the same principle as thosegenerally used, excepting the eounteresweep M, Fig. 7, which is attachedto the main sweep, and is used for striking on the iirst coat of loamand is then taken ofi.

My cope is in two parts or pieces, put together with bolts and keys,Fig. 1, the under part having bolts T T, with key-holes in them, Fig.5,the upper part having lugs with holes in them to receive the bolts T.The under part of the cope is that in which the kettle or pan is cast.Theupperpartis thatinwhichthesprue, gates, and part of the runner forthe passage of the liquid metal is made. It consists of a cylindricchamber large enough in diameter to embrace the pouringgates N N in thecrown of Figs. 1 and 5. This cylinder or flask is about Iifteen incheshigh, the upper half of which is about six inches in diameter largerthan the under half. One side of the upper half is cut out, and atrough, S, Figs. l and 5, is made to branch from it at the opening. Inthis trough part of the runner is made. The under part ofthe cope, inwhich the kettle or pan is cast, is made in the same manner that ironcopes are usually made, excepting that it has lugs or projections U U IIaround the the base corresponding with those on the foot` ring, Fig. 3,and also that the pouring-gates are in the crown instead of at theiiange.

V'is the gate for the sinking-head, being in the center of the crown ofthe cope.

' F P are the bolts on which the cap-plate of the short pipe7 Fig. 6, isfixed. This eapplztte has zt center hole in it for tliecope-sweep torevolve in.

R, Fig. 6, is 2L short pipe attached to the capplate which forms theopening for the sinkinghcad in the loam, when the cope is being covered.

Having thus described my improved flask for casting kettlcs, What Iclaim as new and of my invention is- The elastic iron core-supporter orinner part of the flask constructed of wings attached to the crown andprovided with covering-strips, substantially as described.

VILLIAM KELLY.

Vitnesses:

I. I). GRACEY, JAMns S. ROWLAND.

